Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/formatter-bundle/DependencyInjection/SonataFormatterExtension.php:25 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/formatter-bundle/DependencyInjection/SonataFormatterExtension.php on line 25